628026227 has 4 divisors (see below), whose sum is σ = 636629400. Its totient is φ = 619423056.

The previous prime is 628026211. The next prime is 628026229. The reversal of 628026227 is 722620826.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 722620826 = 2 ⋅361310413.

It is a cyclic number.

It is not a de Polignac number, because 628026227 - 2⁴ = 628026211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (628026229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4301477 + ... + 4301622.

It is an arithmetic number, because the mean of its divisors is an integer number (159157350).

Almost surely, 2^628026227 is an apocalyptic number.

628026227 is a deficient number, since it is larger than the sum of its proper divisors (8603173).

628026227 is an equidigital number, since it uses as much as digits as its factorization.

628026227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8603172.

The product of its (nonzero) digits is 32256, while the sum is 35.

The square root of 628026227 is about 25060.4514524380. The cubic root of 628026227 is about 856.3656922049.

The spelling of 628026227 in words is "six hundred twenty-eight million, twenty-six thousand, two hundred twenty-seven".